<form id="sofrm" name="sofrm" target="_blank" method="get">
    <input type="hidden" name="q" id="J_q" value=""/>
    <input type="hidden" name="sel" id="J_sel" value="baidu" />
</form>
<p>
    <input type="text" name="kw" id="kw" class="sokw"/>
    <span class="s_btn_wr"><input type="submit" onmouseout="this.className='s_btn'" onmousedown="this.className='s_btn s_btn_h'" class="s_btn" id="su" value="搜问答" onclick=" doAskSearch();"></span>
</p>
<p>
    <label>
        <input type="checkbox" name="selsite" value="baidu" id="selsite_0"  checked="checked" />
        <a href="http://zhidao.baidu.com/?tn=uuola_com" target="_blank">百度知道</a>
    </label>
    <label><input type="checkbox" name="selsite" value="soso" id="selsite_2"  />
      <a href="http://wenwen.soso.com/?src=uuola_com" target="_blank">soso问答</a>
    </label>
    <label><input type="checkbox" name="selsite" value="sohu" id="selsite_6" />
        <a href="http://wenda.sohu.com/?src=uuola_com" target="_blank">sohu问答</a>
    </label>
<label><input type="checkbox" name="selsite" value="sogou" id="selsite_5" />
        <a href="http://zhishi.sogou.com/?src=uuola_com" target="_blank">搜狗知识</a>
    </label>
</p>